102213243 has 12 divisors (see below), whose sum is σ = 161063448. Its totient is φ = 61947360.

The previous prime is 102213239. The next prime is 102213263. The reversal of 102213243 is 342312201.

It is not a de Polignac number, because 102213243 - 2² = 102213239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102213263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 516130 + ... + 516327.

It is an arithmetic number, because the mean of its divisors is an integer number (13421954).

Almost surely, 2^102213243 is an apocalyptic number.

102213243 is a deficient number, since it is larger than the sum of its proper divisors (58850205).

102213243 is a wasteful number, since it uses less digits than its factorization.

102213243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1032474 (or 1032471 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 102213243 is about 10110.0565280319. The cubic root of 102213243 is about 467.5582479588.

Adding to 102213243 its reverse (342312201), we get a palindrome (444525444).

The spelling of 102213243 in words is "one hundred two million, two hundred thirteen thousand, two hundred forty-three".